StorageWorks 3000 array

[James Anker]

Hi,

I have a StorageWorks 3000 Array attached to a Sun E450 Server, the array currently has 6 x 18GB disks in it configured at RAID5.

I need to add some additional capacity by adding drives.

The 18GB drives are end of life but i can get hold of 36GB drives instead - Can anyone qualify that there will be no technical issues running this 36GB disk along
side the original 18GB disks in a single RAID5 set? Will I get the capacity of only 18GB out of it or the full 36GB?

Points waiting!

Thanks in advance.


James

[Vincent Fleming · Accepted solution]

IF you are talking about the new EVA3000, then yes, you can do that.

We don't suggest putting different sized drives in the same disk pool, though. It's not a technical problem, though - it's related to how the array allocates data blocks from the disk pool and load-levels the drives.

Mixing drive sizes in a disk pool may make your performance uneven.

...and yes, you will get the full capacity of the drive added to the disk pool - it'll use the whole drive.

You might want to try partsurfer to find 18GB "replacement" drives. http://partsurfer.hp.com/cgi-bin/spi/main

Good luck,

Vince